Closure for jars and other receptacles.



Ptented Oct. 6,1908.

G. VALENTINE. GLOSURE FOR JARS AND OTHERl REGBPTAGLBS.

y vAPPLICATION FILED MAY 6, 1907.

UNITED sTATEs PATENT OEEIOE.

GORDON VALENTINE,y oE-.cHIoAGo, ILLINOIS.

cLosURE FOR JARs AND OTHER REOEPTAGLES.

Specification of Letters Patent l Patented Oct. 6, 1908,

Application led. May 6, 1907; Serial No. 372,041..

companyi'ng drawings, forming a art of this.

specification, in which corres on of reference in like parts.

The object of my invention is `to provide a closure for jars, cans and other rece tacles which shall be strong, cheap, simp e and effective, and which shall be-especially adapted for use as a closure where it is desirable to insulate the contents of the receptacle as much as possible from variation in` temperature. I accomplish said object in the manner hereinafter more particularly described and claimed. In the drawings, Figure 1 is a vertical sectional view of a portion ofv the top of a receptacle showing myimproved closure applied thereto, Fig. 2, is a plan view thereof, ig. 3 is a vertical sectional view of a portion of a cover or wall of a vessel having an opening therein showing a modified form of my invention appliedthereto, and Fig. 4 is a vertical sectional view ,of a portion of a jar showing a modified form of closure.

Referring to the drawings, a, Figs. v1, `2 and 3 represents the top or horizontal wall of a receptacle, such, for example, as a milkcan, having a circular openingV t formed therein. A closure comprising` a plurality of disks c arranged substantially parallel to each other and connected'together by means of a central stud d, is placed within the opening. The disks c are of substantially uniform diameter and are preferably formed from one Or more thicknesses of paraffined paper or other suitable, yielding, nonab. sorbent material and are, by preference, de-

ng vletters the diHerent gures indicate tachably secured to the central stud by. means of a bolt e having a nut f upon its` lower end. A loop 'g upon the upper end enables a ring h to be attached to said bolt. The diameter of the disks c is somewhat greater thanthat of the opening Z) so that causes the disks to assume a concavo-convex form as indicated in the drawing, thereby resisting any outward pressure from within ,the receptacle by avtendency to expand or press laterally a ainst the walls of the opening. The space etween the two disks serves l as a'dead-air s ace to insulate the contents ofthe receptac e'from the outer atmosphere. In Fig. 3 I have shown a modification of said invention which consists in forming ank 'opening iin the uppermost disk, thereby enabling a sealing compound such, for example, as paraffin, wax or other sealin element to Vbepoured therein to hermetica ly seal said closure.

In Fig. 4, a still further modification is shownV which consists of two disks rigidly attached to a central stud c by means of nails or tacks Z. An o ening m is shown in the outer disk which is lled by means of Wax n. A similar filling o is formed above the inner disk as well as around the edge of the outer one. The device last described is more especially applicable to fruit jars and other receptacles, which are intended to retain and preserve their contents for a considerable time.

Having thus described my invention, I claim:

1. A device of the class described in which is combined a plurality of parallel disks of substantially uniform diameter formed from non-absorbent yielding material, a spacing stud located centrally between them, and means for detachably connecting said disks to the ends of said stud to provide an insulating space between said disks.

2. The combinationin a closure of the class described, of parallel disks formed from non-absorbent yielding material, a hollow central 'stud interposed centrally between them,and a connecting bolt for rigidly compressing the same against said stud.

3. A closure of the class described comprising a plurality of connected disks having -a space between them, said disks being formed from a yielding non-absorbent material, one of said disks being provided with an opening therein.

nIn testimony whereof, I have signed this specification in thepresence of two subscribing witnesses, this third day of May 1907.

` GORDON VALENTINE.

. Witnesses:

D. H. FLETCHER, CARRIE'E. JORDAN. 

